Results 31 to 40 of about 5,250 (250)

A Variabilitymethod for Obtaining Subjective Information

open access: yesMarketing Management Journal, 1993
One efficient data collection methodology for obtaining subjective information has received little attention. It is balanced incomplete block (BIB) designs. The authors demonstrate how to develop and apply a BIB design.
DAVID R. RINK   +2 more
doaj   +1 more source

RELATIVE PRECISION OF SOME INCOMPLETE BLOCK DESIGNS FOR SOYBEAN UNIFORMITY TRIALS AND OPTIMUM SAMPLE SIZE [PDF]

open access: yesJournal of Plant Production, 2000
Experiments of the present study were conducted at the Experimental Station, Faculty of Agriculture, Cairo University, Egypt in 1998 and 1999 seasons. Cutler and Crawford soybean cultivars were used. In 1998 and 1999 four uniformity trials were conducted
M. Shafik, R. Taha,
doaj   +1 more source

Missing Data Imputation in Balanced Construction for Incomplete Block Designs

open access: yesMathematics
Observational data with massive sample sizes are often distributed on many local machines. From an experimental design perspective, investigators often desire to identify the effect of new treatments (even ML algorithms) on many blocks of experimental ...
Haiyan Yu   +3 more
doaj   +1 more source

Notes on the Regular E-Optimal Spring Balance Weighing Designs with Correlated Errors

open access: yesRevstat Statistical Journal, 2015
The paper deals with the estimation problem of individual weights of objects in Eoptimal spring balance weighing design. It is assumed that errors are equal correlated.
Bronisław Ceranka   +1 more
doaj   +1 more source

Almost designs and their links with balanced incomplete block designs [PDF]

open access: yesDesigns, Codes and Cryptography, 2019
Almost designs ($t$-adesigns) were proposed and discussed by Ding as a certain generalization of combinatorial designs related to almost difference sets. Unlike $t$-designs, it is not clear whether $t$-adesigns need also be $(t-1)$-designs or $(t-1)$-adesigns.
Jerod Michel, Qi Wang 0012
openaire   +2 more sources

Consensus Standards and Recommendations for Developmental and Cognitive Surveillance, Screening, and Evaluation in Sickle Cell Disease: Executive Summary From the National Alliance of Sickle Cell Centers Neurocognitive Workgroup

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neurodevelopmental and neurocognitive difficulties are prevalent among individuals with sickle cell disease and warrant prompt identification and support. This Special Report provides an executive summary of standards and recommendations for surveillance, screening, and evaluation for development and cognition across the lifespan developed by ...
Alyssa M. Schlenz   +12 more
wiley   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Regular A-optimal Spring Balance Weighing Designs

open access: yesRevstat Statistical Journal, 2012
The problem of indicating an A-optimal spring balance weighing design providing that the measurement errors have different variances and are uncorrelated is considered.
Małgorzata Graczyk
doaj   +1 more source

A Note on the Balanced Incomplete Block Designs

open access: yesThe Annals of Mathematical Statistics, 1956
It is a well-known property of the BIB design that all treatment effects are estimated with the same accuracy, i.e., that the variances of the estimates of the treatment effects are all equal and their covariances are also all equal. We show that the converse is also true. If the estimates of the treatment effects in an incomplete block design all have
openaire   +2 more sources

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